#2D5979
Closest named color: YInMn Blue (#415A77). oklch(44.7% 0.072 242.3), rgb(45, 89, 121).
Aa
White text reads best on this color (7.45:1).
About this color
#2D5979 is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.072 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.023 away. White text reads best on it, at 7.45:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.81:1 |
| White text | 7.45:1 |
Values
| HEX | #2D5979 |
| RGB | rgb(45, 89, 121) |
| HSL | hsl(205, 46%, 33%) |
| OKLCH | oklch(44.7% 0.072 242.3) |
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 #2D5979 | 7.45:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #2D5979 | 2.81:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #2D5979 text on white | 7.45:1 | AAA | Lc 85.7 | Fine for body text |
| #2D5979 text on black | 2.81:1 | Fails | Lc -16.3 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CCDBE8
oklch(88.4% 0.024 244.2)
-
Step 300
300
#AAC5DA
oklch(81% 0.042 241.5)
-
Step 400
400
#7CA6C7
oklch(70.7% 0.067 242.5)
-
Step 500
500
#5890B9
oklch(63.1% 0.086 241.7)
-
Step 600
600
#3C79A5
oklch(55.5% 0.093 242.4)
-
Step 700
700
#2E668E
oklch(49.1% 0.087 242.5)
-
Step 800
800 (this color)
#2D5979
oklch(44.7% 0.072 242.3)
-
Step 900
900
#25455D
oklch(37.7% 0.056 242.6)
-
Step 950
950
#162936
oklch(27.1% 0.035 239.7)
#2D5979 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) | #4B597A | 0.036 |
| Deuteranopia (no green cones) | #405278 | 0.028 |
| Tritanopia (no blue cones) | #006164 | 0.055 |
| Achromatopsia (no color) | #555555 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D5979
#2D5979
oklch(44.7% 0.072 242.3)
- #714B28
#714B28
oklch(44.8% 0.072 61.9)
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 #2D5979, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.023
- Light Navy Blue #2E5A88 ΔE 0.025
- Deep Sea Blue #015482 ΔE 0.036
- Dusk Blue #26538D ΔE 0.042
- Light Navy #155084 ΔE 0.042
- Petrol #005F6A ΔE 0.043
- Denim #3B638C ΔE 0.044
- Denim Blue #3B5B92 ΔE 0.045
Use #2D5979 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.