#4989EE
Closest named color: Dark Sky Blue (#448EE4). oklch(63.8% 0.166 259.2), rgb(73, 137, 238).
Aa
Black text reads best on this color (6.09:1).
About this color
#4989EE is a medium-light, vivid blue. In OKLCH its lightness is 64%, its chroma 0.166 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.022 away. Black text reads best on it, at 6.09:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.166) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.09:1 |
| White text | 3.44:1 |
Values
| HEX | #4989EE |
| RGB | rgb(73, 137, 238) |
| HSL | hsl(217, 83%, 61%) |
| OKLCH | oklch(63.8% 0.166 259.2) |
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 #4989EE | 3.44:1 | AA large text | Lc -67.1 | Content text, not long reading |
| Black text on #4989EE | 6.09:1 | AA | Lc 42.4 | Non-text elements, placeholder text |
| #4989EE text on white | 3.44:1 | AA large text | Lc 61.6 | Content text, not long reading |
| #4989EE text on black | 6.09:1 | AA | Lc -40.1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBFA
oklch(93.7% 0.023 258.4)
-
Step 200
200
#C8DAF8
oklch(88.4% 0.046 260.7)
-
Step 300
300
#A2C2F5
oklch(80.9% 0.081 259.6)
-
Step 400
400
#6EA1F1
oklch(70.7% 0.13 259.1)
-
Step 500
500 (this color)
#4989EE
oklch(63.8% 0.166 259.2)
-
Step 600
600
#286EDA
oklch(55.6% 0.18 259.3)
-
Step 700
700
#1A5BBD
oklch(49% 0.167 259.2)
-
Step 800
800
#184B99
oklch(42.7% 0.139 259.2)
-
Step 900
900
#1A407A
oklch(37.8% 0.108 258.8)
-
Step 950
950
#102647
oklch(27% 0.068 258.4)
#4989EE 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) | #5892F2 | 0.030 |
| Deuteranopia (no green cones) | #3C83EC | 0.021 |
| Tritanopia (no blue cones) | #00A0B0 | 0.131 |
| Achromatopsia (no color) | #8A8A8A | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4989EE
#4989EE
oklch(63.8% 0.166 259.2)
- #B68000
#B68000
oklch(63.8% 0.132 78.9)
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 #4989EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.022
- Soft Blue #6488EA ΔE 0.027
- Chefchaouen Blue #4895EF ΔE 0.032
- Dodger Blue #1E90FF ΔE 0.034
- Cornflower Blue #6495ED ΔE 0.045
- Cornflower #6A79F7 ΔE 0.052
- Clear Blue #247AFD ΔE 0.056
- Water Blue #0E87CC ΔE 0.064
Use #4989EE 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.