#1A2835
Closest named color: Dark (#1B2431). oklch(27% 0.031 247.2), rgb(26, 40, 53).
Aa
White text reads best on this color (15.01:1).
About this color
#1A2835 is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.031 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.014 away. White text reads best on it, at 15.01:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.39:1 |
| White text | 15.01:1 |
Values
| HEX | #1A2835 |
| RGB | rgb(26, 40, 53) |
| HSL | hsl(209, 34%, 15%) |
| OKLCH | oklch(27% 0.031 247.2) |
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 #1A2835 | 15.01:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #1A2835 | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #1A2835 text on white | 15.01:1 | AAA | Lc 101.9 | Preferred for body text |
| #1A2835 text on black | 1.39:1 | Fails | Lc 0.0 | 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 950.
-
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
#CFDBE6
oklch(88.6% 0.02 245.7)
-
Step 300
300
#AEC3D8
oklch(80.8% 0.038 248.3)
-
Step 400
400
#83A5C4
oklch(70.8% 0.059 246.3)
-
Step 500
500
#648EB5
oklch(63.1% 0.075 247.3)
-
Step 600
600
#4A78A1
oklch(55.7% 0.082 246.8)
-
Step 700
700
#3B648A
oklch(49% 0.077 247.9)
-
Step 800
800
#315270
oklch(42.7% 0.063 247.3)
-
Step 900
900
#2C445A
oklch(37.7% 0.048 247.1)
-
Step 950
950 (this color)
#1A2835
oklch(27% 0.031 247.2)
#1A2835 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) | #232836 | 0.014 |
| Deuteranopia (no green cones) | #1F2535 | 0.012 |
| Tritanopia (no blue cones) | #0F2B2C | 0.027 |
| Achromatopsia (no color) | #272727 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A2835
#1A2835
oklch(27% 0.031 247.2)
- #312416
#312416
oklch(27.2% 0.031 68)
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 #1A2835, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.014
- Oxford Blue #1B263B ΔE 0.015
- Jet #212529 ΔE 0.023
- Space Cadet #2B2D42 ΔE 0.040
- Gunmetal #293241 ΔE 0.046
- Rich Black #0D1B2A ΔE 0.053
- Midnight Green #073B4C ΔE 0.067
- Prussian Blue #1D3557 ΔE 0.069
Use #1A2835 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.