#2D4972
Closest named color: Light Navy (#155084). oklch(40.4% 0.077 257.8), rgb(45, 73, 114).
Aa
White text reads best on this color (9.10:1).
About this color
#2D4972 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.077 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.035 away. White text reads best on it, at 9.10:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.30:1 |
| White text | 9.10:1 |
Values
| HEX | #2D4972 |
| RGB | rgb(45, 73, 114) |
| HSL | hsl(216, 43%, 31%) |
| OKLCH | oklch(40.4% 0.077 257.8) |
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 #2D4972 | 9.10:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #2D4972 | 2.30:1 | Fails | Lc 13.2 | Not readable |
| #2D4972 text on white | 9.10:1 | AAA | Lc 90.8 | Preferred for body text |
| #2D4972 text on black | 2.30:1 | Fails | Lc -11.5 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CFDAEA
oklch(88.5% 0.025 257.6)
-
Step 300
300
#AFC2DE
oklch(80.9% 0.045 258)
-
Step 400
400
#85A2CE
oklch(70.7% 0.072 258.6)
-
Step 500
500
#668BC1
oklch(63.1% 0.092 257.7)
-
Step 600
600
#4D74AE
oklch(55.6% 0.101 258.1)
-
Step 700
700
#3E6195
oklch(49.1% 0.093 258.1)
-
Step 800
800 (this color)
#2D4972
oklch(40.4% 0.077 257.8)
-
Step 900
900
#2D4261
oklch(37.6% 0.06 258)
-
Step 950
950
#1B2739
oklch(27.1% 0.038 258.3)
#2D4972 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) | #384C74 | 0.018 |
| Deuteranopia (no green cones) | #2F4571 | 0.012 |
| Tritanopia (no blue cones) | #005258 | 0.067 |
| Achromatopsia (no color) | #484848 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D4972
#2D4972
oklch(40.4% 0.077 257.8)
- #5F430C
#5F430C
oklch(40.4% 0.077 79)
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 #2D4972, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.035
- Twilight Blue #0A437A ΔE 0.039
- Dark Grey Blue #29465B ΔE 0.040
- Deep Sea Blue #015482 ΔE 0.042
- Dusk Blue #26538D ΔE 0.049
- Cobalt #1E488F ΔE 0.051
- Charcoal #264653 ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.057
Use #2D4972 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.