#4B89BC
Closest named color: Cool Blue (#4984B8). oklch(61% 0.101 245.3), rgb(75, 137, 188).
Aa
Black text reads best on this color (5.60:1).
About this color
#4B89BC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.101 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.015 away. Black text reads best on it, at 5.60:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.60:1 |
| White text | 3.74:1 |
Values
| HEX | #4B89BC |
| RGB | rgb(75, 137, 188) |
| HSL | hsl(207, 46%, 52%) |
| OKLCH | oklch(61% 0.101 245.3) |
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 #4B89BC | 3.74:1 | AA large text | Lc -70.3 | Content text, not long reading |
| Black text on #4B89BC | 5.60:1 | AA | Lc 39.2 | Non-text elements, placeholder text |
| #4B89BC text on white | 3.74:1 | AA large text | Lc 64.8 | Content text, not long reading |
| #4B89BC text on black | 5.60:1 | AA | Lc -36.8 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CBDBEB
oklch(88.4% 0.028 248.1)
-
Step 300
300
#A7C5DF
oklch(81% 0.049 244.6)
-
Step 400
400
#77A6CF
oklch(70.7% 0.079 245.5)
-
Step 500
500 (this color)
#4B89BC
oklch(61% 0.101 245.3)
-
Step 600
600
#3379AF
oklch(55.7% 0.109 245)
-
Step 700
700
#256597
oklch(49.1% 0.103 245.9)
-
Step 800
800
#20537A
oklch(42.7% 0.084 244.9)
-
Step 900
900
#204562
oklch(37.7% 0.066 244.5)
-
Step 950
950
#14283A
oklch(26.9% 0.043 247.2)
#4B89BC 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) | #738ABE | 0.045 |
| Deuteranopia (no green cones) | #647FBB | 0.036 |
| Tritanopia (no blue cones) | #00959B | 0.079 |
| Achromatopsia (no color) | #848484 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B89BC
#4B89BC
oklch(61% 0.101 245.3)
- #AD763C
#AD763C
oklch(61.1% 0.101 65.3)
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 #4B89BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.015
- Steel Blue #4682B4 ΔE 0.023
- Off Blue #5684AE ΔE 0.023
- Dusty Blue #5A86AD ΔE 0.025
- Faded Blue #658CBB ΔE 0.030
- Blue NCS #118AB2 ΔE 0.038
- Water Blue #0E87CC ΔE 0.042
- Stormy Blue #507B9C ΔE 0.055
Use #4B89BC 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.