#133253
Closest named color: Prussian Blue (#1D3557). oklch(31.2% 0.07 252.2), rgb(19, 50, 83).
Aa
White text reads best on this color (13.05:1).
About this color
#133253 is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.070 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.017 away. White text reads best on it, at 13.05:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.60:1 |
| White text | 13.05:1 |
Values
| HEX | #133253 |
| RGB | rgb(19, 50, 83) |
| HSL | hsl(211, 63%, 20%) |
| OKLCH | oklch(31.2% 0.07 252.2) |
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 #133253 | 13.05:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #133253 | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #133253 text on white | 13.05:1 | AAA | Lc 99.1 | Preferred for body text |
| #133253 text on black | 1.60:1 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DFEBFA
oklch(93.6% 0.024 254)
-
Step 200
200
#C4DCF7
oklch(88.5% 0.045 251.4)
-
Step 300
300
#9AC5F5
oklch(81% 0.082 251.6)
-
Step 400
400
#5FA4F0
oklch(70.6% 0.132 252.2)
-
Step 500
500
#298BEB
oklch(63% 0.169 252.2)
-
Step 600
600
#0074D1
oklch(55.7% 0.167 252.1)
-
Step 700
700
#0061B1
oklch(49.1% 0.148 252.3)
-
Step 800
800
#004F92
oklch(42.6% 0.129 252.3)
-
Step 900
900
#04427A
oklch(37.7% 0.111 252.4)
-
Step 950
950 (this color)
#133253
oklch(31.2% 0.07 252.2)
#133253 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) | #233454 | 0.020 |
| Deuteranopia (no green cones) | #1A2E52 | 0.013 |
| Tritanopia (no blue cones) | #003A3E | 0.054 |
| Achromatopsia (no color) | #313131 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #133253
#133253
oklch(31.2% 0.07 252.2)
- #452A00
#452A00
oklch(31.1% 0.067 72)
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 #133253, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.017
- Marine #042E60 ΔE 0.030
- Midnight Green #073B4C ΔE 0.036
- Dark Blue Grey #1F3B4D ΔE 0.038
- Gunmetal #293241 ΔE 0.041
- Space Cadet #2B2D42 ΔE 0.041
- Marine Blue #01386A ΔE 0.042
- Oxford Blue #1B263B ΔE 0.052
Use #133253 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.