#153451
Closest named color: Prussian Blue (#1D3557). oklch(31.7% 0.064 249.2), rgb(21, 52, 81).
Aa
White text reads best on this color (12.79:1).
About this color
#153451 is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.064 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.015 away. White text reads best on it, at 12.79:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.64:1 |
| White text | 12.79:1 |
Values
| HEX | #153451 |
| RGB | rgb(21, 52, 81) |
| HSL | hsl(209, 59%, 20%) |
| OKLCH | oklch(31.7% 0.064 249.2) |
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 #153451 | 12.79:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #153451 | 1.64:1 | Fails | Lc 0.0 | Not readable |
| #153451 text on white | 12.79:1 | AAA | Lc 98.7 | Preferred for body text |
| #153451 text on black | 1.64:1 | 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
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DFEBF8
oklch(93.5% 0.022 250.2)
-
Step 200
200
#C5DCF4
oklch(88.5% 0.041 249.4)
-
Step 300
300
#9BC5F0
oklch(80.9% 0.076 249.4)
-
Step 400
400
#61A6E9
oklch(70.8% 0.121 249.2)
-
Step 500
500
#2B8EE2
oklch(63.2% 0.154 249)
-
Step 600
600
#0076C8
oklch(55.5% 0.154 249.2)
-
Step 700
700
#0063A9
oklch(49% 0.136 249.1)
-
Step 800
800
#00518C
oklch(42.7% 0.118 249.2)
-
Step 900
900
#054374
oklch(37.6% 0.101 249.5)
-
Step 950
950 (this color)
#153451
oklch(31.7% 0.064 249.2)
#153451 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) | #273552 | 0.022 |
| Deuteranopia (no green cones) | #1F3050 | 0.015 |
| Tritanopia (no blue cones) | #003B3E | 0.050 |
| Achromatopsia (no color) | #323232 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #153451
#153451
oklch(31.7% 0.064 249.2)
- #472B06
#472B06
oklch(31.7% 0.064 68.2)
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 #153451, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.015
- Midnight Green #073B4C ΔE 0.028
- Dark Blue Grey #1F3B4D ΔE 0.029
- Gunmetal #293241 ΔE 0.035
- Marine #042E60 ΔE 0.038
- Space Cadet #2B2D42 ΔE 0.039
- Marine Blue #01386A ΔE 0.044
- Oxford Blue #1B263B ΔE 0.054
Use #153451 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.