#2F576A
Closest named color: YInMn Blue (#415A77). oklch(43.6% 0.055 230.4), rgb(47, 87, 106).
Aa
White text reads best on this color (7.80:1).
About this color
#2F576A is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.055 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.032 away. White text reads best on it, at 7.80:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.69:1 |
| White text | 7.80:1 |
Values
| HEX | #2F576A |
| RGB | rgb(47, 87, 106) |
| HSL | hsl(199, 39%, 30%) |
| OKLCH | oklch(43.6% 0.055 230.4) |
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 #2F576A | 7.80:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #2F576A | 2.69:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #2F576A text on white | 7.80:1 | AAA | Lc 87.0 | Fine for body text |
| #2F576A text on black | 2.69:1 | Fails | Lc -15.1 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CEDCE3
oklch(88.6% 0.018 229)
-
Step 300
300
#ACC5D2
oklch(80.9% 0.033 230.4)
-
Step 400
400
#80A7BB
oklch(70.7% 0.051 230.7)
-
Step 500
500
#5F91AA
oklch(63.1% 0.066 230.9)
-
Step 600
600
#447B95
oklch(55.6% 0.071 230.3)
-
Step 700
700
#35687F
oklch(49.2% 0.066 229.5)
-
Step 800
800 (this color)
#2F576A
oklch(43.6% 0.055 230.4)
-
Step 900
900
#294654
oklch(37.7% 0.042 230.2)
-
Step 950
950
#182931
oklch(27% 0.027 229.2)
#2F576A 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) | #4D566B | 0.038 |
| Deuteranopia (no green cones) | #454F6A | 0.035 |
| Tritanopia (no blue cones) | #095C5D | 0.040 |
| Achromatopsia (no color) | #525252 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F576A
#2F576A
oklch(43.6% 0.055 230.4)
- #6A4835
#6A4835
oklch(43.5% 0.055 50)
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 #2F576A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.032
- Petrol #005F6A ΔE 0.034
- Deep Teal #00555A ΔE 0.043
- Dark Slate Gray #2F4F4F ΔE 0.046
- Light Navy Blue #2E5A88 ΔE 0.049
- Deep Sea Blue #015482 ΔE 0.050
- Dusty Grape #545775 ΔE 0.053
- Dark Grey Blue #29465B ΔE 0.056
Use #2F576A 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.