#4F87D1
Closest named color: Dark Sky Blue (#448EE4). oklch(61.9% 0.127 256), rgb(79, 135, 209).
Aa
Black text reads best on this color (5.71:1).
About this color
#4F87D1 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.127 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.031 away. Black text reads best on it, at 5.71:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.71:1 |
| White text | 3.67:1 |
Values
| HEX | #4F87D1 |
| RGB | rgb(79, 135, 209) |
| HSL | hsl(214, 59%, 56%) |
| OKLCH | oklch(61.9% 0.127 256) |
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 #4F87D1 | 3.67:1 | AA large text | Lc -69.6 | Content text, not long reading |
| Black text on #4F87D1 | 5.71:1 | AA | Lc 40.0 | Non-text elements, placeholder text |
| #4F87D1 text on white | 3.67:1 | AA large text | Lc 64.1 | Content text, not long reading |
| #4F87D1 text on black | 5.71:1 | AA | Lc -37.6 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CBDBF0
oklch(88.6% 0.034 255.2)
-
Step 300
300
#A7C3E9
oklch(80.9% 0.062 256.1)
-
Step 400
400
#77A3DE
oklch(70.7% 0.099 256)
-
Step 500
500 (this color)
#4F87D1
oklch(61.9% 0.127 256)
-
Step 600
600
#3673C2
oklch(55.5% 0.138 256)
-
Step 700
700
#2860A8
oklch(49% 0.129 256.1)
-
Step 800
800
#234F88
oklch(42.7% 0.107 256.1)
-
Step 900
900
#21426D
oklch(37.7% 0.084 255.9)
-
Step 950
950
#142740
oklch(27% 0.053 255.8)
#4F87D1 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) | #678CD4 | 0.031 |
| Deuteranopia (no green cones) | #5580CF | 0.019 |
| Tritanopia (no blue cones) | #0098A2 | 0.106 |
| Achromatopsia (no color) | #858585 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F87D1
#4F87D1
oklch(61.9% 0.127 256)
- #B1790B
#B1790B
oklch(61.8% 0.127 75.8)
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 #4F87D1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.031
- Cool Blue #4984B8 ΔE 0.039
- Water Blue #0E87CC ΔE 0.039
- Soft Blue #6488EA ΔE 0.045
- Faded Blue #658CBB ΔE 0.046
- Steel Blue #4682B4 ΔE 0.046
- Chefchaouen Blue #4895EF ΔE 0.052
- Off Blue #5684AE ΔE 0.053
Use #4F87D1 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.