#1B495F
Closest named color: Dark Grey Blue (#29465B). oklch(38.4% 0.062 232.4), rgb(27, 73, 95).
Aa
White text reads best on this color (9.70:1).
About this color
#1B495F is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.062 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.015 away. White text reads best on it, at 9.70:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.16:1 |
| White text | 9.70:1 |
Values
| HEX | #1B495F |
| RGB | rgb(27, 73, 95) |
| HSL | hsl(199, 56%, 24%) |
| OKLCH | oklch(38.4% 0.062 232.4) |
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 #1B495F | 9.70:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #1B495F | 2.16:1 | Fails | Lc 11.7 | Not readable |
| #1B495F text on white | 9.70:1 | AAA | Lc 92.3 | Preferred for body text |
| #1B495F text on black | 2.16:1 | Fails | Lc -10.1 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C9DDE8
oklch(88.6% 0.026 231.7)
-
Step 300
300
#A3C7DA
oklch(81% 0.047 231.1)
-
Step 400
400
#70A9C7
oklch(70.7% 0.074 232.2)
-
Step 500
500
#4693B9
oklch(63% 0.095 232.5)
-
Step 600
600
#207DA5
oklch(55.6% 0.103 232.1)
-
Step 700
700
#0F698E
oklch(49.1% 0.096 232.8)
-
Step 800
800
#135673
oklch(42.7% 0.079 232.3)
-
Step 900
900 (this color)
#1B495F
oklch(38.4% 0.062 232.4)
-
Step 950
950
#102A36
oklch(27.1% 0.039 230.5)
#1B495F 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) | #3E4860 | 0.041 |
| Deuteranopia (no green cones) | #35415F | 0.036 |
| Tritanopia (no blue cones) | #004F50 | 0.040 |
| Achromatopsia (no color) | #444444 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B495F
#1B495F
oklch(38.4% 0.062 232.4)
- #5D3A23
#5D3A23
oklch(38.4% 0.061 53.3)
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 #1B495F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.015
- Charcoal #264653 ΔE 0.021
- Dark Teal #014D4E ΔE 0.039
- Dark Slate Gray #2F4F4F ΔE 0.043
- Deep Teal #00555A ΔE 0.043
- Dark Blue Grey #1F3B4D ΔE 0.048
- Twilight Blue #0A437A ΔE 0.055
- Midnight Green #073B4C ΔE 0.056
Use #1B495F 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.