#2F4878
Closest named color: Light Navy (#155084). oklch(40.6% 0.087 262.4), rgb(47, 72, 120).
Aa
White text reads best on this color (9.05:1).
About this color
#2F4878 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.087 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.032 away. White text reads best on it, at 9.05:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.31:1 |
| White text | 9.05:1 |
Values
| HEX | #2F4878 |
| RGB | rgb(47, 72, 120) |
| HSL | hsl(219, 44%, 33%) |
| OKLCH | oklch(40.6% 0.087 262.4) |
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 #2F4878 | 9.05:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #2F4878 | 2.31:1 | Fails | Lc 13.3 | Not readable |
| #2F4878 text on white | 9.05:1 | AAA | Lc 90.7 | Preferred for body text |
| #2F4878 text on black | 2.31:1 | Fails | Lc -11.7 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#CFDAEC
oklch(88.5% 0.028 260.3)
-
Step 300
300
#AFC1E2
oklch(80.8% 0.051 262.6)
-
Step 400
400
#85A1D4
oklch(70.7% 0.081 262.2)
-
Step 500
500
#6789C8
oklch(63.1% 0.103 262.1)
-
Step 600
600
#4F72B5
oklch(55.7% 0.112 262.4)
-
Step 700
700
#3F5F9C
oklch(49.1% 0.105 262.3)
-
Step 800
800 (this color)
#2F4878
oklch(40.6% 0.087 262.4)
-
Step 900
900
#2E4165
oklch(37.7% 0.067 262.4)
-
Step 950
950
#1B263B
oklch(26.9% 0.042 262.7)
#2F4878 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) | #344C7A | 0.014 |
| Deuteranopia (no green cones) | #2A4677 | 0.009 |
| Tritanopia (no blue cones) | #00535A | 0.077 |
| Achromatopsia (no color) | #494949 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4878
#2F4878
oklch(40.6% 0.087 262.4)
- #5F4400
#5F4400
oklch(40.6% 0.083 82.8)
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 #2F4878, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.032
- Twilight Blue #0A437A ΔE 0.037
- Cobalt #1E488F ΔE 0.041
- Deep Sea Blue #015482 ΔE 0.042
- Dusk Blue #26538D ΔE 0.043
- Dark Grey Blue #29465B ΔE 0.051
- Light Navy Blue #2E5A88 ΔE 0.055
- Dark Slate Blue #483D8B ΔE 0.058
Use #2F4878 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.