#4589E4
Closest named color: Dark Sky Blue (#448EE4). oklch(63% 0.154 256.5), rgb(69, 137, 228).
Aa
Black text reads best on this color (5.95:1).
About this color
#4589E4 is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.154 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.013 away. Black text reads best on it, at 5.95:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.154) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.95:1 |
| White text | 3.52:1 |
Values
| HEX | #4589E4 |
| RGB | rgb(69, 137, 228) |
| HSL | hsl(214, 75%, 58%) |
| OKLCH | oklch(63% 0.154 256.5) |
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 #4589E4 | 3.52:1 | AA large text | Lc -68.0 | Content text, not long reading |
| Black text on #4589E4 | 5.95:1 | AA | Lc 41.5 | Non-text elements, placeholder text |
| #4589E4 text on white | 3.52:1 | AA large text | Lc 62.5 | Content text, not long reading |
| #4589E4 text on black | 5.95:1 | AA | Lc -39.1 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C8DBF5
oklch(88.5% 0.041 256.2)
-
Step 300
300
#A1C3F1
oklch(80.8% 0.075 256.1)
-
Step 400
400
#6EA2EB
oklch(70.6% 0.121 257)
-
Step 500
500 (this color)
#4589E4
oklch(63% 0.154 256.5)
-
Step 600
600
#2471D2
oklch(55.6% 0.167 256.5)
-
Step 700
700
#165EB6
oklch(49.1% 0.155 256.5)
-
Step 800
800
#164D93
oklch(42.6% 0.128 256.6)
-
Step 900
900
#194176
oklch(37.7% 0.101 256.6)
-
Step 950
950
#102645
oklch(26.9% 0.064 257.3)
#4589E4 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) | #5F90E8 | 0.033 |
| Deuteranopia (no green cones) | #4582E2 | 0.019 |
| Tritanopia (no blue cones) | #009EAB | 0.121 |
| Achromatopsia (no color) | #888888 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4589E4
#4589E4
oklch(63% 0.154 256.5)
- #B67C00
#B67C00
oklch(63% 0.132 76.1)
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 #4589E4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.013
- Soft Blue #6488EA ΔE 0.032
- Chefchaouen Blue #4895EF ΔE 0.034
- Dodger Blue #1E90FF ΔE 0.044
- Cornflower Blue #6495ED ΔE 0.048
- Water Blue #0E87CC ΔE 0.049
- Cornflower #6A79F7 ΔE 0.063
- Clear Blue #247AFD ΔE 0.063
Use #4589E4 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.