#556C69
Closest named color: Dim Gray (#696969). oklch(51.2% 0.028 186.6), rgb(85, 108, 105).
Aa
White text reads best on this color (5.62:1).
About this color
#556C69 is a medium-dark close to neutral grey. In OKLCH its lightness is 51%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Dim Gray (#696969), ΔE 0.029 away. White text reads best on it, at 5.62:1.
| Hue family | Neutrals |
| Lightness | medium-dark (51%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Dim Gray (#696969) |
| Black text | 3.73:1 |
| White text | 5.62:1 |
Values
| HEX | #556C69 |
| RGB | rgb(85, 108, 105) |
| HSL | hsl(172, 12%, 38%) |
| OKLCH | oklch(51.2% 0.028 186.6) |
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 #556C69 | 5.62:1 | AA | Lc -83.4 | Fine for body text |
| Black text on #556C69 | 3.73:1 | AA large text | Lc 26.0 | Dividers and decoration only |
| #556C69 text on white | 5.62:1 | AA | Lc 78.1 | Fine for body text |
| #556C69 text on black | 3.73:1 | AA large text | Lc -23.7 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E7EBEA
oklch(93.7% 0.004 179.7)
-
Step 200
200
#D4DBDA
oklch(88.6% 0.008 186.9)
-
Step 300
300
#B8C4C2
oklch(81% 0.013 185)
-
Step 400
400
#92A5A3
oklch(70.7% 0.022 189)
-
Step 500
500
#778F8C
oklch(63% 0.028 187.2)
-
Step 600
600
#607976
oklch(55.5% 0.029 187.4)
-
Step 700
700 (this color)
#556C69
oklch(51.2% 0.028 186.6)
-
Step 800
800
#415351
oklch(42.6% 0.023 188)
-
Step 900
900
#374543
oklch(37.7% 0.018 185.8)
-
Step 950
950
#202827
oklch(26.9% 0.011 187.3)
#556C69 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) | #6A6969 | 0.031 |
| Deuteranopia (no green cones) | #656669 | 0.028 |
| Tritanopia (no blue cones) | #4F6D6B | 0.008 |
| Achromatopsia (no color) | #676767 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #556C69
#556C69
oklch(51.2% 0.028 186.6)
- #756064
#756064
oklch(51.1% 0.028 5.3)
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 #556C69, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dim Gray #696969 ΔE 0.029
- Slate #516572 ΔE 0.030
- Battleship Gray #6C757D ΔE 0.052
- Metallic Blue #4F738E ΔE 0.056
- Deep Turquoise #017374 ΔE 0.059
- Dark Aquamarine #017371 ΔE 0.059
- Deep Aqua #08787F ΔE 0.062
- Bluegreen #017A79 ΔE 0.063
Use #556C69 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.