#2D617F
Closest named color: Denim (#3B638C). oklch(47.1% 0.074 236.6), rgb(45, 97, 127).
Aa
White text reads best on this color (6.71:1).
About this color
#2D617F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.074 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.027 away. White text reads best on it, at 6.71:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.12:1 |
| White text | 6.71:1 |
Values
| HEX | #2D617F |
| RGB | rgb(45, 97, 127) |
| HSL | hsl(202, 48%, 34%) |
| OKLCH | oklch(47.1% 0.074 236.6) |
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 #2D617F | 6.71:1 | AA | Lc -88.0 | Fine for body text |
| Black text on #2D617F | 3.12:1 | AA large text | Lc 21.1 | Dividers and decoration only |
| #2D617F text on white | 6.71:1 | AA | Lc 82.9 | Fine for body text |
| #2D617F text on black | 3.12:1 | AA large text | Lc -19.0 | 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
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CDDBE5
oklch(88.4% 0.02 238.7)
-
Step 300
300
#ACC5D5
oklch(81% 0.035 236)
-
Step 400
400
#7FA7C0
oklch(70.8% 0.057 236.1)
-
Step 500
500
#5D90B0
oklch(63% 0.073 237.1)
-
Step 600
600
#427A9C
oklch(55.6% 0.079 237.2)
-
Step 700
700 (this color)
#2D617F
oklch(47.1% 0.074 236.6)
-
Step 800
800
#2B546C
oklch(42.7% 0.061 236.3)
-
Step 900
900
#274558
oklch(37.6% 0.049 237.8)
-
Step 950
950
#182933
oklch(27.1% 0.029 235.2)
#2D617F 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) | #536080 | 0.044 |
| Deuteranopia (no green cones) | #48587F | 0.038 |
| Tritanopia (no blue cones) | #00696B | 0.052 |
| Achromatopsia (no color) | #5C5C5C | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D617F
#2D617F
oklch(47.1% 0.074 236.6)
- #7A5030
#7A5030
oklch(47.1% 0.073 57.1)
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 #2D617F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.027
- YInMn Blue #415A77 ΔE 0.027
- Light Navy Blue #2E5A88 ΔE 0.029
- Peacock Blue #016795 ΔE 0.038
- Denim Blue #3B5B92 ΔE 0.042
- Petrol #005F6A ΔE 0.045
- Dusky Blue #475F94 ΔE 0.048
- Slate #516572 ΔE 0.049
Use #2D617F 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.