#2B435C
Closest named color: Dark Grey Blue (#29465B). oklch(37.5% 0.053 250.3), rgb(43, 67, 92).
Aa
White text reads best on this color (10.19:1).
About this color
#2B435C is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.053 and its hue 250°. 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 10.19:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.06:1 |
| White text | 10.19:1 |
Values
| HEX | #2B435C |
| RGB | rgb(43, 67, 92) |
| HSL | hsl(211, 36%, 26%) |
| OKLCH | oklch(37.5% 0.053 250.3) |
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 #2B435C | 10.19:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #2B435C | 2.06:1 | Fails | Lc 10.3 | Not readable |
| #2B435C text on white | 10.19:1 | AAA | Lc 93.6 | Preferred for body text |
| #2B435C text on black | 2.06:1 | 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
#AEC3DA
oklch(80.9% 0.04 250.7)
-
Step 400
400
#83A4C7
oklch(70.7% 0.063 250.2)
-
Step 500
500
#648DB9
oklch(63.1% 0.081 250.9)
-
Step 600
600
#4A77A5
oklch(55.7% 0.088 250.2)
-
Step 700
700
#3B648D
oklch(49.2% 0.081 249.8)
-
Step 800
800
#315173
oklch(42.6% 0.068 251.1)
-
Step 900
900 (this color)
#2B435C
oklch(37.5% 0.053 250.3)
-
Step 950
950
#1A2836
oklch(27.1% 0.032 249.1)
#2B435C 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) | #39445D | 0.020 |
| Deuteranopia (no green cones) | #333F5C | 0.016 |
| Tritanopia (no blue cones) | #14494C | 0.045 |
| Achromatopsia (no color) | #414141 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B435C
#2B435C
oklch(37.5% 0.053 250.3)
- #533C20
#533C20
oklch(37.5% 0.053 70.4)
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 #2B435C, 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 0.022
- Dark Blue Grey #1F3B4D ΔE 0.038
- Charcoal Grey #3C4142 ΔE 0.048
- Onyx #343A40 ΔE 0.049
- Prussian Blue #1D3557 ΔE 0.050
- Dark Slate Gray #2F4F4F ΔE 0.052
- Midnight Green #073B4C ΔE 0.052
Use #2B435C 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.