#2B435B
Closest named color: Dark Grey Blue (#29465B). oklch(37.4% 0.051 249.3), rgb(43, 67, 91).
Aa
White text reads best on this color (10.21:1).
About this color
#2B435B is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.051 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.010 away. White text reads best on it, at 10.21:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.05:1 |
| White text | 10.21:1 |
Values
| HEX | #2B435B |
| RGB | rgb(43, 67, 91) |
| HSL | hsl(210, 36%, 26%) |
| OKLCH | oklch(37.4% 0.051 249.3) |
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 #2B435B | 10.21:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #2B435B | 2.05:1 | Fails | Lc 10.3 | Not readable |
| #2B435B text on white | 10.21:1 | AAA | Lc 93.6 | Preferred for body text |
| #2B435B text on black | 2.05:1 | Fails | Lc -8.9 | 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 900.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CFDBE7
oklch(88.6% 0.021 248.1)
-
Step 300
300
#AEC3D9
oklch(80.8% 0.039 249.5)
-
Step 400
400
#83A4C6
oklch(70.6% 0.062 249.5)
-
Step 500
500
#648DB7
oklch(63% 0.078 249.7)
-
Step 600
600
#4A77A3
oklch(55.6% 0.085 249.1)
-
Step 700
700
#3B648C
oklch(49.1% 0.079 249.2)
-
Step 800
800
#315272
oklch(42.8% 0.066 248.9)
-
Step 900
900 (this color)
#2B435B
oklch(37.4% 0.051 249.3)
-
Step 950
950
#1A2836
oklch(27.1% 0.032 249.1)
#2B435B 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) | #39445C | 0.020 |
| Deuteranopia (no green cones) | #333F5B | 0.016 |
| Tritanopia (no blue cones) | #15494B | 0.045 |
| Achromatopsia (no color) | #414141 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B435B
#2B435B
oklch(37.4% 0.051 249.3)
- #533C22
#533C22
oklch(37.5% 0.051 68.6)
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 #2B435B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.010
- Charcoal #264653 ΔE 0.020
- Dark Blue Grey #1F3B4D ΔE 0.037
- Charcoal Grey #3C4142 ΔE 0.046
- Onyx #343A40 ΔE 0.048
- Prussian Blue #1D3557 ΔE 0.050
- Dark Slate Gray #2F4F4F ΔE 0.051
- Midnight Green #073B4C ΔE 0.051
Use #2B435B 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.