#4F89DA
Closest named color: Dark Sky Blue (#448EE4). oklch(62.8% 0.137 257.1), rgb(79, 137, 218).
Aa
Black text reads best on this color (5.92:1).
About this color
#4F89DA is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.137 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.019 away. Black text reads best on it, at 5.92:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.137) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.92:1 |
| White text | 3.54:1 |
Values
| HEX | #4F89DA |
| RGB | rgb(79, 137, 218) |
| HSL | hsl(215, 65%, 58%) |
| OKLCH | oklch(62.8% 0.137 257.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #4F89DA | 3.54:1 | AA large text | Lc -68.3 | Content text, not long reading |
| Black text on #4F89DA | 5.92:1 | AA | Lc 41.3 | Non-text elements, placeholder text |
| #4F89DA text on white | 3.54:1 | AA large text | Lc 62.8 | Content text, not long reading |
| #4F89DA text on black | 5.92:1 | AA | Lc -38.9 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EBF7
oklch(93.7% 0.019 255.5)
-
Step 200
200
#CADBF2
oklch(88.6% 0.037 256)
-
Step 300
300
#A5C3EC
oklch(80.9% 0.067 256.3)
-
Step 400
400
#75A2E3
oklch(70.6% 0.108 257.5)
-
Step 500
500 (this color)
#4F89DA
oklch(62.8% 0.137 257.1)
-
Step 600
600
#3372C9
oklch(55.6% 0.15 257.3)
-
Step 700
700
#255FAD
oklch(49% 0.138 257)
-
Step 800
800
#204E8C
oklch(42.6% 0.114 256.9)
-
Step 900
900
#204170
oklch(37.6% 0.09 257.5)
-
Step 950
950
#132742
oklch(27.1% 0.057 256.4)
#4F89DA with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #668FDD | 0.031 |
| Deuteranopia (no green cones) | #5282D8 | 0.018 |
| Tritanopia (no blue cones) | #009CA7 | 0.113 |
| Achromatopsia (no color) | #888888 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F89DA
#4F89DA
oklch(62.8% 0.137 257.1)
- #B47C00
#B47C00
oklch(62.7% 0.131 77.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #4F89DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.019
- Soft Blue #6488EA ΔE 0.034
- Chefchaouen Blue #4895EF ΔE 0.040
- Water Blue #0E87CC ΔE 0.046
- Cornflower Blue #6495ED ΔE 0.048
- Cool Blue #4984B8 ΔE 0.053
- Faded Blue #658CBB ΔE 0.054
- Dodger Blue #1E90FF ΔE 0.059
Use #4F89DA in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.