#4C9FBB
Closest named color: Cadet Blue (#5F9EA0). oklch(66.2% 0.09 222.9), rgb(76, 159, 187).
Aa
Black text reads best on this color (6.98:1).
About this color
#4C9FBB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.090 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.041 away. Black text reads best on it, at 6.98:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.98:1 |
| White text | 3.00:1 |
Values
| HEX | #4C9FBB |
| RGB | rgb(76, 159, 187) |
| HSL | hsl(195, 45%, 52%) |
| OKLCH | oklch(66.2% 0.09 222.9) |
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 #4C9FBB | 3.00:1 | AA large text | Lc -61.9 | Content text, not long reading |
| Black text on #4C9FBB | 6.98:1 | AA | Lc 47.5 | Large or bold text, headings |
| #4C9FBB text on white | 3.00:1 | AA large text | Lc 56.6 | Large or bold text, headings |
| #4C9FBB text on black | 6.98:1 | AA | Lc -45.2 | 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 500.
-
Step 50
50
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C9DDE5
oklch(88.5% 0.024 223.7)
-
Step 300
300
#A3C8D6
oklch(81.1% 0.044 222.9)
-
Step 400
400
#6EABC1
oklch(70.8% 0.071 222.8)
-
Step 500
500 (this color)
#4C9FBB
oklch(66.2% 0.09 222.9)
-
Step 600
600
#167F9D
oklch(55.5% 0.098 223.3)
-
Step 700
700
#016B86
oklch(49% 0.091 223.2)
-
Step 800
800
#0C586D
oklch(42.8% 0.075 222.5)
-
Step 900
900
#164858
oklch(37.6% 0.059 223.1)
-
Step 950
950
#0F2A34
oklch(26.9% 0.038 225.1)
#4C9FBB 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) | #8F9CBC | 0.072 |
| Deuteranopia (no green cones) | #7F90BB | 0.064 |
| Tritanopia (no blue cones) | #00A8A8 | 0.054 |
| Achromatopsia (no color) | #959595 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C9FBB
#4C9FBB
oklch(66.2% 0.09 222.9)
- #C28066
#C28066
oklch(66.2% 0.091 42.3)
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 #4C9FBB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.041
- Greyblue #77A1B5 ΔE 0.044
- Turquoise Blue #06B1C4 ΔE 0.052
- Faded Blue #658CBB ΔE 0.056
- Silver Lake Blue #778DA9 ΔE 0.061
- Blue Grey #758DA3 ΔE 0.061
- Bluegrey #85A3B2 ΔE 0.062
- Sea #3C9992 ΔE 0.064
Use #4C9FBB 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.