#4B88CE
Closest named color: Dark Sky Blue (#448EE4). oklch(61.8% 0.124 253.3), rgb(75, 136, 206).
Aa
Black text reads best on this color (5.71:1).
About this color
#4B88CE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.124 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.034 away. Black text reads best on it, at 5.71:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.71:1 |
| White text | 3.67:1 |
Values
| HEX | #4B88CE |
| RGB | rgb(75, 136, 206) |
| HSL | hsl(212, 57%, 55%) |
| OKLCH | oklch(61.8% 0.124 253.3) |
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 #4B88CE | 3.67:1 | AA large text | Lc -69.6 | Content text, not long reading |
| Black text on #4B88CE | 5.71:1 | AA | Lc 40.0 | Non-text elements, placeholder text |
| #4B88CE text on white | 3.67:1 | AA large text | Lc 64.1 | Content text, not long reading |
| #4B88CE 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
#CADBF0
oklch(88.5% 0.034 253.7)
-
Step 300
300
#A6C4E8
oklch(81% 0.061 253.2)
-
Step 400
400
#75A4DC
oklch(70.7% 0.097 253.4)
-
Step 500
500 (this color)
#4B88CE
oklch(61.8% 0.124 253.3)
-
Step 600
600
#3175C0
oklch(55.7% 0.135 253.3)
-
Step 700
700
#2362A5
oklch(49.1% 0.125 253)
-
Step 800
800
#1F5086
oklch(42.7% 0.104 253.3)
-
Step 900
900
#1F436B
oklch(37.7% 0.08 252.8)
-
Step 950
950
#13273F
oklch(26.9% 0.052 254)
#4B88CE 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) | #6A8CD1 | 0.036 |
| Deuteranopia (no green cones) | #5880CD | 0.023 |
| Tritanopia (no blue cones) | #0098A1 | 0.100 |
| Achromatopsia (no color) | #858585 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B88CE
#4B88CE
oklch(61.8% 0.124 253.3)
- #B27818
#B27818
oklch(61.8% 0.124 73.2)
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 #4B88CE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.034
- Cool Blue #4984B8 ΔE 0.034
- Water Blue #0E87CC ΔE 0.035
- Steel Blue #4682B4 ΔE 0.041
- Faded Blue #658CBB ΔE 0.043
- Off Blue #5684AE ΔE 0.048
- Dusty Blue #5A86AD ΔE 0.051
- Soft Blue #6488EA ΔE 0.052
Use #4B88CE 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.