#515A4F
Closest named color: Dark Green Blue (#1F6357). oklch(45.6% 0.021 140), rgb(81, 90, 79).
Aa
White text reads best on this color (7.17:1).
About this color
#515A4F is a medium-dark close to neutral grey. In OKLCH its lightness is 46%, its chroma 0.021. It has too little chroma to lean warm or cool. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.056 away. White text reads best on it, at 7.17:1.
| Hue family | Neutrals |
| Lightness | medium-dark (46%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.92:1 |
| White text | 7.17:1 |
Values
| HEX | #515A4F |
| RGB | rgb(81, 90, 79) |
| HSL | hsl(109, 7%, 33%) |
| OKLCH | oklch(45.6% 0.021 140) |
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 #515A4F | 7.17:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #515A4F | 2.92:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #515A4F text on white | 7.17:1 | AAA | Lc 84.9 | Fine for body text |
| #515A4F text on black | 2.92:1 | Fails | Lc -17.1 | 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 800.
-
Step 50
50
#F5F6F5
oklch(97.2% 0.002 145.6)
-
Step 100
100
#E9EAE8
oklch(93.6% 0.003 128.5)
-
Step 200
200
#D7DAD6
oklch(88.5% 0.006 137.8)
-
Step 300
300
#BDC3BB
oklch(81% 0.013 137.8)
-
Step 400
400
#9AA498
oklch(70.7% 0.021 140.5)
-
Step 500
500
#828D7F
oklch(63% 0.024 139)
-
Step 600
600
#6B7768
oklch(55.5% 0.027 139.4)
-
Step 700
700
#596457
oklch(49% 0.024 140.8)
-
Step 800
800 (this color)
#515A4F
oklch(45.6% 0.021 140)
-
Step 900
900
#3D443C
oklch(37.7% 0.016 141.7)
-
Step 950
950
#242823
oklch(27.1% 0.011 139.4)
#515A4F 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) | #5B584E | 0.016 |
| Deuteranopia (no green cones) | #59574F | 0.015 |
| Tritanopia (no blue cones) | #515957 | 0.014 |
| Achromatopsia (no color) | #575757 | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #515A4F
#515A4F
oklch(45.6% 0.021 140)
- #5C535E
#5C535E
oklch(45.5% 0.021 320.1)
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 #515A4F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.056
- Slate #516572 ΔE 0.056
- Dark Slate Gray #2F4F4F ΔE 0.062
- Dusty Grape #545775 ΔE 0.067
- YInMn Blue #415A77 ΔE 0.067
- Dim Gray #696969 ΔE 0.068
- Pine #2B5D34 ΔE 0.070
- Dark Aqua #05696B ΔE 0.072
Use #515A4F 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.