#4D6574
Closest named color: Slate (#516572). oklch(49.3% 0.037 236), rgb(77, 101, 116).
Aa
White text reads best on this color (6.12:1).
About this color
#4D6574 is a medium-dark, muted blue. In OKLCH its lightness is 49%, its chroma 0.037 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.006 away. White text reads best on it, at 6.12:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.42:1 |
| White text | 6.12:1 |
Values
| HEX | #4D6574 |
| RGB | rgb(77, 101, 116) |
| HSL | hsl(203, 20%, 38%) |
| OKLCH | oklch(49.3% 0.037 236) |
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 #4D6574 | 6.12:1 | AA | Lc -85.7 | Fine for body text |
| Black text on #4D6574 | 3.42:1 | AA large text | Lc 23.5 | Dividers and decoration only |
| #4D6574 text on white | 6.12:1 | AA | Lc 80.6 | Fine for body text |
| #4D6574 text on black | 3.42:1 | AA large text | Lc -21.3 | Dividers and decoration only |
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 700.
-
Step 50
50
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAED
oklch(93.6% 0.005 247.9)
-
Step 200
200
#D3DADF
oklch(88.4% 0.01 238.5)
-
Step 300
300
#B6C3CB
oklch(81% 0.018 234.6)
-
Step 400
400
#90A4B1
oklch(70.7% 0.029 236.4)
-
Step 500
500
#758D9D
oklch(63% 0.037 237.4)
-
Step 600
600
#5D7788
oklch(55.5% 0.04 237.1)
-
Step 700
700 (this color)
#4D6574
oklch(49.3% 0.037 236)
-
Step 800
800
#3F525E
oklch(42.7% 0.031 236.2)
-
Step 900
900
#35444D
oklch(37.7% 0.025 234.6)
-
Step 950
950
#1F282D
oklch(27% 0.016 232.4)
#4D6574 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) | #5E6475 | 0.024 |
| Deuteranopia (no green cones) | #596074 | 0.021 |
| Tritanopia (no blue cones) | #40696A | 0.029 |
| Achromatopsia (no color) | #626262 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D6574
#4D6574
oklch(49.3% 0.037 236)
- #725C4D
#725C4D
oklch(49.3% 0.037 56)
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 #4D6574, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.006
- YInMn Blue #415A77 ΔE 0.041
- Dusty Grape #545775 ΔE 0.043
- Denim #3B638C ΔE 0.045
- Dim Gray #696969 ΔE 0.046
- Metallic Blue #4F738E ΔE 0.051
- Dark Aqua #05696B ΔE 0.059
- Dusky Blue #475F94 ΔE 0.060
Use #4D6574 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.