#133153
Closest named color: Prussian Blue (#1D3557). oklch(31% 0.071 253.5), rgb(19, 49, 83).
Aa
White text reads best on this color (13.19:1).
About this color
#133153 is a dark, moderately saturated blue. In OKLCH its lightness is 31%, its chroma 0.071 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.019 away. White text reads best on it, at 13.19:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.59:1 |
| White text | 13.19:1 |
Values
| HEX | #133153 |
| RGB | rgb(19, 49, 83) |
| HSL | hsl(212, 63%, 20%) |
| OKLCH | oklch(31% 0.071 253.5) |
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 #133153 | 13.19:1 | AAA | Lc -102.6 | Preferred for body text |
| Black text on #133153 | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #133153 text on white | 13.19:1 | AAA | Lc 99.3 | Preferred for body text |
| #133153 text on black | 1.59:1 | 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
#C4DCF8
oklch(88.6% 0.047 252.4)
-
Step 300
300
#9BC4F6
oklch(80.9% 0.084 253.7)
-
Step 400
400
#60A4F2
oklch(70.7% 0.134 253.1)
-
Step 500
500
#2C8AEE
oklch(63.1% 0.173 253.6)
-
Step 600
600
#0072D5
oklch(55.5% 0.175 253.6)
-
Step 700
700
#0060B4
oklch(49.1% 0.153 253.4)
-
Step 800
800
#004E95
oklch(42.6% 0.134 253.6)
-
Step 900
900
#07417B
oklch(37.6% 0.113 253.8)
-
Step 950
950 (this color)
#133153
oklch(31% 0.071 253.5)
#133153 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) | #213354 | 0.018 |
| Deuteranopia (no green cones) | #182D52 | 0.013 |
| Tritanopia (no blue cones) | #00393E | 0.054 |
| Achromatopsia (no color) | #303030 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #133153
#133153
oklch(31% 0.071 253.5)
- #442A00
#442A00
oklch(31% 0.066 73.1)
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 #133153, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.019
- Marine #042E60 ΔE 0.029
- Midnight Green #073B4C ΔE 0.039
- Space Cadet #2B2D42 ΔE 0.041
- Dark Blue Grey #1F3B4D ΔE 0.041
- Gunmetal #293241 ΔE 0.042
- Marine Blue #01386A ΔE 0.043
- Oxford Blue #1B263B ΔE 0.050
Use #133153 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.