#4B9FCF
Closest named color: Faded Blue (#658CBB). oklch(67% 0.108 236.6), rgb(75, 159, 207).
Aa
Black text reads best on this color (7.15:1).
About this color
#4B9FCF is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.108 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.055 away. Black text reads best on it, at 7.15:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 7.15:1 |
| White text | 2.93:1 |
Values
| HEX | #4B9FCF |
| RGB | rgb(75, 159, 207) |
| HSL | hsl(202, 58%, 55%) |
| OKLCH | oklch(67% 0.108 236.6) |
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 #4B9FCF | 2.93:1 | Fails | Lc -60.9 | Content text, not long reading |
| Black text on #4B9FCF | 7.15:1 | AAA | Lc 48.5 | Large or bold text, headings |
| #4B9FCF text on white | 2.93:1 | Fails | Lc 55.5 | Large or bold text, headings |
| #4B9FCF text on black | 7.15:1 | AAA | Lc -46.3 | Large or bold text, headings |
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 400.
-
Step 50
50
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DEECF5
oklch(93.5% 0.019 235.7)
-
Step 200
200
#C3DEEF
oklch(88.6% 0.037 235.5)
-
Step 300
300
#97C8E7
oklch(80.9% 0.068 236.5)
-
Step 400
400 (this color)
#4B9FCF
oklch(67% 0.108 236.6)
-
Step 500
500
#0094D1
oklch(63.1% 0.137 236.6)
-
Step 600
600
#007CB0
oklch(55.5% 0.121 236.7)
-
Step 700
700
#006895
oklch(49% 0.107 237)
-
Step 800
800
#00557B
oklch(42.6% 0.093 237.2)
-
Step 900
900
#004767
oklch(37.7% 0.082 236.6)
-
Step 950
950
#022A3E
oklch(27% 0.056 236.2)
#4B9FCF 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) | #889ED1 | 0.064 |
| Deuteranopia (no green cones) | #7691CE | 0.053 |
| Tritanopia (no blue cones) | #00ABAF | 0.074 |
| Achromatopsia (no color) | #979797 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B9FCF
#4B9FCF
oklch(67% 0.108 236.6)
- #C88350
#C88350
oklch(67.1% 0.108 56.1)
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 #4B9FCF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.055
- Greyblue #77A1B5 ΔE 0.057
- Chefchaouen Blue #4895EF ΔE 0.061
- Turquoise Blue #06B1C4 ΔE 0.062
- Cornflower Blue #6495ED ΔE 0.063
- Dark Sky Blue #448EE4 ΔE 0.064
- Cadet Blue #5F9EA0 ΔE 0.071
- Silver Lake Blue #778DA9 ΔE 0.072
Use #4B9FCF 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.