#2D5F79
Closest named color: YInMn Blue (#415A77). oklch(46.2% 0.068 233.6), rgb(45, 95, 121).
Aa
White text reads best on this color (6.94:1).
About this color
#2D5F79 is a medium-dark, muted blue. In OKLCH its lightness is 46%, its chroma 0.068 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.024 away. White text reads best on it, at 6.94:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 3.02:1 |
| White text | 6.94:1 |
Values
| HEX | #2D5F79 |
| RGB | rgb(45, 95, 121) |
| HSL | hsl(201, 46%, 33%) |
| OKLCH | oklch(46.2% 0.068 233.6) |
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 #2D5F79 | 6.94:1 | AA | Lc -88.8 | Fine for body text |
| Black text on #2D5F79 | 3.02:1 | AA large text | Lc 20.2 | Dividers and decoration only |
| #2D5F79 text on white | 6.94:1 | AA | Lc 83.9 | Fine for body text |
| #2D5F79 text on black | 3.02:1 | AA large text | Lc -18.1 | 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 700.
-
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
#CEDBE4
oklch(88.4% 0.019 237.8)
-
Step 300
300
#ADC5D3
oklch(81% 0.033 233.4)
-
Step 400
400
#80A7BD
oklch(70.8% 0.053 233.2)
-
Step 500
500
#5F91AC
oklch(63.2% 0.067 232.9)
-
Step 600
600
#447B98
oklch(55.7% 0.074 233.2)
-
Step 700
700 (this color)
#2D5F79
oklch(46.2% 0.068 233.6)
-
Step 800
800
#2D5469
oklch(42.6% 0.056 233.8)
-
Step 900
900
#294655
oklch(37.8% 0.043 232.1)
-
Step 950
950
#182932
oklch(27% 0.028 232.3)
#2D5F79 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) | #525E7A | 0.044 |
| Deuteranopia (no green cones) | #485679 | 0.039 |
| Tritanopia (no blue cones) | #006668 | 0.047 |
| Achromatopsia (no color) | #5A5A5A | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D5F79
#2D5F79
oklch(46.2% 0.068 233.6)
- #774E33
#774E33
oklch(46.3% 0.069 53.6)
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 #2D5F79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.024
- Light Navy Blue #2E5A88 ΔE 0.033
- Denim #3B638C ΔE 0.036
- Petrol #005F6A ΔE 0.037
- Peacock Blue #016795 ΔE 0.047
- Dark Aqua #05696B ΔE 0.048
- Denim Blue #3B5B92 ΔE 0.049
- Slate #516572 ΔE 0.049
Use #2D5F79 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.