#4F9BC8
Closest named color: Faded Blue (#658CBB). oklch(66% 0.101 237), rgb(79, 155, 200).
Aa
Black text reads best on this color (6.85:1).
About this color
#4F9BC8 is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.101 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.043 away. Black text reads best on it, at 6.85:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.85:1 |
| White text | 3.06:1 |
Values
| HEX | #4F9BC8 |
| RGB | rgb(79, 155, 200) |
| HSL | hsl(202, 52%, 55%) |
| OKLCH | oklch(66% 0.101 237) |
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 #4F9BC8 | 3.06:1 | AA large text | Lc -62.7 | Content text, not long reading |
| Black text on #4F9BC8 | 6.85:1 | AA | Lc 46.8 | Large or bold text, headings |
| #4F9BC8 text on white | 3.06:1 | AA large text | Lc 57.3 | Large or bold text, headings |
| #4F9BC8 text on black | 6.85:1 | AA | Lc -44.5 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C9DCE9
oklch(88.4% 0.027 237.6)
-
Step 300
300
#A3C6DD
oklch(80.9% 0.05 237)
-
Step 400
400
#70A8CC
oklch(70.6% 0.079 237.6)
-
Step 500
500 (this color)
#4F9BC8
oklch(66% 0.101 237)
-
Step 600
600
#207CAB
oklch(55.7% 0.109 236.7)
-
Step 700
700
#106893
oklch(49.1% 0.102 237.2)
-
Step 800
800
#135577
oklch(42.7% 0.084 236.9)
-
Step 900
900
#194660
oklch(37.6% 0.066 237.6)
-
Step 950
950
#102938
oklch(26.9% 0.042 237.4)
#4F9BC8 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) | #869ACA | 0.059 |
| Deuteranopia (no green cones) | #758EC7 | 0.049 |
| Tritanopia (no blue cones) | #00A7AA | 0.074 |
| Achromatopsia (no color) | #939393 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F9BC8
#4F9BC8
oklch(66% 0.101 237)
- #C18252
#C18252
oklch(66.1% 0.101 57.2)
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 #4F9BC8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.043
- Greyblue #77A1B5 ΔE 0.054
- Silver Lake Blue #778DA9 ΔE 0.061
- Dusty Blue #5A86AD ΔE 0.062
- Dark Sky Blue #448EE4 ΔE 0.063
- Cadet Blue #5F9EA0 ΔE 0.065
- Blue Grey #758DA3 ΔE 0.065
- Chefchaouen Blue #4895EF ΔE 0.065
Use #4F9BC8 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.