#2D5083
Closest named color: Dusk Blue (#26538D). oklch(43.1% 0.094 257.8), rgb(45, 80, 131).
Aa
White text reads best on this color (8.11:1).
About this color
#2D5083 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.094 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.017 away. White text reads best on it, at 8.11:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.58:1 |
| White text | 8.11:1 |
Values
| HEX | #2D5083 |
| RGB | rgb(45, 80, 131) |
| HSL | hsl(216, 49%, 35%) |
| OKLCH | oklch(43.1% 0.094 257.8) |
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 #2D5083 | 8.11:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #2D5083 | 2.58:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #2D5083 text on white | 8.11:1 | AAA | Lc 87.9 | Fine for body text |
| #2D5083 text on black | 2.58:1 | Fails | Lc -14.3 | Not readable |
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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EAF5
oklch(93.5% 0.017 259.4)
-
Step 200
200
#CDDAEE
oklch(88.5% 0.031 258.9)
-
Step 300
300
#ABC2E5
oklch(80.9% 0.056 258.7)
-
Step 400
400
#7EA2D8
oklch(70.6% 0.089 258.3)
-
Step 500
500
#5D8ACD
oklch(63% 0.113 258.1)
-
Step 600
600
#4373BA
oklch(55.6% 0.123 258.1)
-
Step 700
700
#3460A0
oklch(49% 0.114 257.8)
-
Step 800
800 (this color)
#2D5083
oklch(43.1% 0.094 257.8)
-
Step 900
900
#284268
oklch(37.7% 0.073 257.8)
-
Step 950
950
#18273D
oklch(27.1% 0.046 257.8)
#2D5083 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) | #3A5485 | 0.021 |
| Deuteranopia (no green cones) | #2E4C82 | 0.012 |
| Tritanopia (no blue cones) | #005C63 | 0.078 |
| Achromatopsia (no color) | #505050 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D5083
#2D5083
oklch(43.1% 0.094 257.8)
- #6B4900
#6B4900
oklch(43.2% 0.09 78.2)
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 #2D5083, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.017
- Light Navy #155084 ΔE 0.019
- Deep Sea Blue #015482 ΔE 0.027
- Light Navy Blue #2E5A88 ΔE 0.030
- Cobalt #1E488F ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.043
- Dusk #4E5481 ΔE 0.046
- Twilight #4E518B ΔE 0.046
Use #2D5083 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.