#4F9DCD
Closest named color: Faded Blue (#658CBB). oklch(66.6% 0.105 238.2), rgb(79, 157, 205).
Aa
Black text reads best on this color (7.03:1).
About this color
#4F9DCD is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.105 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.049 away. Black text reads best on it, at 7.03:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 7.03:1 |
| White text | 2.98:1 |
Values
| HEX | #4F9DCD |
| RGB | rgb(79, 157, 205) |
| HSL | hsl(203, 56%, 56%) |
| OKLCH | oklch(66.6% 0.105 238.2) |
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 #4F9DCD | 2.98:1 | Fails | Lc -61.6 | Content text, not long reading |
| Black text on #4F9DCD | 7.03:1 | AAA | Lc 47.8 | Large or bold text, headings |
| #4F9DCD text on white | 2.98:1 | Fails | Lc 56.3 | Large or bold text, headings |
| #4F9DCD text on black | 7.03:1 | AAA | Lc -45.5 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1ECF3
oklch(93.7% 0.015 235.4)
-
Step 200
200
#C9DCEA
oklch(88.5% 0.028 239.7)
-
Step 300
300
#A3C6DE
oklch(80.9% 0.051 238.2)
-
Step 400
400
#6EA8CE
oklch(70.6% 0.082 238.2)
-
Step 500
500 (this color)
#4F9DCD
oklch(66.6% 0.105 238.2)
-
Step 600
600
#1C7BAE
oklch(55.5% 0.115 238.6)
-
Step 700
700
#0A6895
oklch(49.1% 0.105 237.8)
-
Step 800
800
#105579
oklch(42.7% 0.087 237.9)
-
Step 900
900
#174662
oklch(37.6% 0.069 238.8)
-
Step 950
950
#0F2939
oklch(26.9% 0.044 238.4)
#4F9DCD 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) | #879CCF | 0.060 |
| Deuteranopia (no green cones) | #7690CC | 0.050 |
| Tritanopia (no blue cones) | #00A9AD | 0.076 |
| Achromatopsia (no color) | #959595 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F9DCD
#4F9DCD
oklch(66.6% 0.105 238.2)
- #C48350
#C48350
oklch(66.6% 0.105 57.8)
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 #4F9DCD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.049
- Greyblue #77A1B5 ΔE 0.056
- Chefchaouen Blue #4895EF ΔE 0.061
- Cornflower Blue #6495ED ΔE 0.062
- Dark Sky Blue #448EE4 ΔE 0.062
- Turquoise Blue #06B1C4 ΔE 0.066
- Silver Lake Blue #778DA9 ΔE 0.067
- Cadet Blue #5F9EA0 ΔE 0.070
Use #4F9DCD 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.