#4B657A
Closest named color: Slate (#516572). oklch(49.4% 0.046 243.2), rgb(75, 101, 122).
Aa
White text reads best on this color (6.10:1).
About this color
#4B657A is a medium-dark, muted blue. In OKLCH its lightness is 49%, its chroma 0.046 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.015 away. White text reads best on it, at 6.10:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.44:1 |
| White text | 6.10:1 |
Values
| HEX | #4B657A |
| RGB | rgb(75, 101, 122) |
| HSL | hsl(207, 24%, 39%) |
| OKLCH | oklch(49.4% 0.046 243.2) |
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 #4B657A | 6.10:1 | AA | Lc -85.6 | Fine for body text |
| Black text on #4B657A | 3.44:1 | AA large text | Lc 23.6 | Dividers and decoration only |
| #4B657A text on white | 6.10:1 | AA | Lc 80.4 | Fine for body text |
| #4B657A text on black | 3.44:1 | AA large text | Lc -21.4 | 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
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D2DAE1
oklch(88.4% 0.013 244.3)
-
Step 300
300
#B5C3CE
oklch(81% 0.022 241.4)
-
Step 400
400
#8EA4B5
oklch(70.7% 0.035 241.3)
-
Step 500
500
#728DA3
oklch(63% 0.045 243.1)
-
Step 600
600
#5A778E
oklch(55.6% 0.049 242.6)
-
Step 700
700 (this color)
#4B657A
oklch(49.4% 0.046 243.2)
-
Step 800
800
#3D5262
oklch(42.8% 0.037 241.5)
-
Step 900
900
#344450
oklch(37.8% 0.029 240.9)
-
Step 950
950
#1F282F
oklch(27.1% 0.018 241.7)
#4B657A 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) | #5C657B | 0.023 |
| Deuteranopia (no green cones) | #56607A | 0.020 |
| Tritanopia (no blue cones) | #3B6A6C | 0.037 |
| Achromatopsia (no color) | #626262 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B657A
#4B657A
oklch(49.4% 0.046 243.2)
- #755C47
#755C47
oklch(49.4% 0.046 61.5)
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 #4B657A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.015
- Denim #3B638C ΔE 0.036
- YInMn Blue #415A77 ΔE 0.037
- Dusty Grape #545775 ΔE 0.041
- Metallic Blue #4F738E ΔE 0.047
- Dusky Blue #475F94 ΔE 0.051
- Dim Gray #696969 ΔE 0.053
- Dusk #4E5481 ΔE 0.055
Use #4B657A 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.